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12293142 = 2317191631
BaseRepresentation
bin101110111001…
…010000010110
3212010120000120
4232321100112
511121340032
61115252410
7206330031
oct56712026
925116016
1012293142
116a37024
12414a106
132715564
1418c0018
15112c62c
hexbb9416

12293142 has 32 divisors (see below), whose sum is σ = 26210304. Its totient is φ = 3830400.

The previous prime is 12293137. The next prime is 12293161. The reversal of 12293142 is 24139221.

12293142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122931422 = 302242680464328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19167 + ... + 19797.

It is an arithmetic number, because the mean of its divisors is an integer number (819072).

Almost surely, 212293142 is an apocalyptic number.

12293142 is an abundant number, since it is smaller than the sum of its proper divisors (13917162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12293142 is a wasteful number, since it uses less digits than its factorization.

12293142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its digits is 864, while the sum is 24.

The square root of 12293142 is about 3506.1577260585. The cubic root of 12293142 is about 230.7921144658.

It can be divided in two parts, 1229 and 3142, that added together give a triangular number (4371 = T93).

The spelling of 12293142 in words is "twelve million, two hundred ninety-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 191 382 573 631 1146 1262 1893 3247 3786 6494 9741 10727 19482 21454 32181 64362 120521 241042 361563 723126 2048857 4097714 6146571 12293142